body{
    margin: 0;
    font-size: 14px;
    .header{
        padding: 30px 0;
        text-align: center;
        background: lightcoral;
        color: #fff;
    }
    .footer{
        padding: 30px 0;
        text-align: center;
        background: lightblue;
        color: #fff;
    }
    .content{
        width: 100%;
        max-width: 1000px;
        margin: 0 auto;
        height: 1000px;
        background: #efefef;
    }
}